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Laser Crystals and Components

Optical Components for Femtosecond Lasers

Femtosecond laser is a kind of ultra-fast pulsed laser with the pulse duration less than 1ps,  which is in the domain of femtoseconds, such short laser pulse is often achieved by passive mode locking techniques. The popular femtosecond laser includes titannium doped sapphire (Ti:Sapphire) lasers, neodymium-doped YAG (Nd:YAG) or ytterbium-doped (Yb:YAG) lasers and the Yb doped fiber lasers. Once the Ultra-short laser pulses is generated, it is necessary to propagate these pulses without disturbing the temporal beam profile, then some special optical component with low despersion become critical for this kind of lasers: Low Group Delay Dispersion (GDD) mirrors, ultra-thin BBO crystals, ultra-thin LBO crystals, thin windows, dispersion prisms and Group Velocity Delay Compensators.

Hangzhou Shalom EO offers the optical components used in the femtosecond ultrafast lasers, both off-the-shelf and custom optics are available, our products include: low GDD mirrors with central wavelenth of 800nm and 1030nm, BBO crystals with minimum thickness of 0.01mm, and LBO crystals, thin BK7 and UV fused silica windows with high flatness, and dispersion prisms and Group Velocity Delay Compensator made from Calcite.